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Finding the Third Proportional to 424,630 and 1,000,987

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Solution

The third proportional to 424,630 and 1,000,987 is: 2,359,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,630 : 1,000,987 = 1,000,987 : x
  2. Step 2: Convert to fraction form
    424,630/1,000,987 = 1,000,987/x
  3. Step 3: Cross multiply
    424,630x = 1,000,987 × 1,000,987
  4. Step 4: Simplify right side
    424,630x = 1,001,974,974,169
  5. Step 5: Solve for x
    x = 1,001,974,974,169/424,630
  6. Step 6: Final answer
    x = 2,359,642.45

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.